Disk-scraper.



N0' 756107' PATENTBD MAR. 29, 1904.

W. FBTZER. DISK SGRAPER. v

APPLIOATION FILED APB.. 10, 1903.'

N0 IODBL.

, M1/vendez UNITED STATES Patented Maren 29, 19x14.Y i

WILLIAM FETZER, OF MIDDLE'IOVVN, OHIO.

DlsK-SCRAPER. f

SPECIFICATION formngpart of Letters Patent No. 756,107, dated March 29,1904.

Application led April 10,1903.

To all whom, it may concer-n:

Beit known that I, WILLIAM FETZEE. a citi- Zen of the United States,residingatMiddletown, in the county of Butler and State of Ohio, haveinvented certain new and vuseful Improvements in Disk Scrapers; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as 'will enable others skilled in the art towhich it appertains to make and use the same.

The present invention relates to improvements in disk-Scrapers, andparticularly to that type designed to automatically accommodatethemselves to the contour of the disk.

The object in view is the provision, in combination with the disks of adisk harrow, of means for removing foreign matter therefrom and capableof automatic adjustment for accommodating itself to unevenness of thedisk, while effectually preventing the retention thereby of foreignsubstances.

With these and other obj ects in view the invention consists, incombination with a disk, of a scraper mounted so as to be rockable on asubstantially vertical shaft and contacting with said disk and means forcushioning such contact.

It' also consists, in combination with a disk and harrow-beam, of astandard pivotally connected therewith, a sleeve inclosing the lower endof said standard, and a scraper carried by saidsleeve contacting withsaid disk.

It further consists in certain other novel constructions, combination,and arrangement of parts, as will be hereinafter fully described andclaimed.

In the drawings, Figure 1 represents a per-A spective view of adisk-scraper embodying the features of the present invention. Fig. 2represents an enlarged detail fragmentary perspective view of the upperend of the scraper standard and connection, parts being broken away fordisclosing interior structure. Fig. 3 represents an enlarged detailview, partly in elevation and partly in section, of the scraper proper,the standard being partly broken away.

In the use of disk harrows and other disk implements it is founddesirable to retain the serial No. 152,023. om man.)

disks as free from foreign substances as possible, and in order toaccomplish this result I employ,.as seen in the accompanying drawings,any suitable support lin this particular instance illustrated being theharrowbeam-to which is secured an attaching-plate '55 2, formed on oneside with parallel upper and lower flanges 3 3, designed to extendbeyond the upper and lower edges of beam or support 1, the flat surface4 between said flanges lying fiat against the liat face of said beam.The

plate 2 is formed with a sleeve 5, extending laterally therefrom andbored centrally for the reception of a retaining-bolt 6, extending'therefrom and through the support or beam 1. The sleeve 5 is surroundedby and forms a 65 bearing for a standard 7, which standard is formedwith a keyhole-slot 8 for permitting the passage of a key-head 9, formedon a bar 10, extending in a horizontal plane transverse the verticalplane of the standard 7. Extending at a right angle from and preferablyformed integral with the bar 10 is a bolt 11, which eX- tends through anaperture formed in'an eye 12, extending from plate 2, a suitable spring13 surrounding said bolt 11 and contacting with 75 eye 12 at one end andbar 10 at the other, said bar serving as a head for said bolt, wherebyAthe pressure of spring 13 eifects the standard 7 for directing the sametoward the disk 14, arranged beneath the beam 1. A lug 15 projects 8Olaterally from plate 2 and normally contacts with a shoulder 16, formedon the upper end of standard 7, whereby the movement of standard 7toward the disk 14 is limited, while said standard is left free to swingin the opposite direction against the pressure of the spring 13. At thelower end of the standard 7 the same is reduced and formed with anannular shoulder 17, and the reduced portion of the standard is inclosedby a sleeve 18, carrying a suitable scraper-plate 19. The sleeve 18 issupported in position by means of a pin 20 extending through an apertureformed in the lower end of the standard 7 and through slots 21 21,formed in sleeve 18, whereby said sleeve 95 and' scraper-plate areleft'free to rotate through a given arc. Y

The disks of various types of implements are often somewhat uneven, andhence the desirability of the provision of means for removing foreignmatter therefrom, which means is capable of automatic adjustment and isat the same time positive in its scraping action.

In operation the disk-plate 19 is free to rock upon its standard toaccommodate itself to the shape of the disk, while at the same timepresenting a sharp cutting-surface designed to remove any foreignsubstances, and in case of clay or other hard matter clinging to thedisk the same will be removed by said plate, the strain upon the platebeing received by the standard longitudinallywthat is to say, there ispractically no lateral strain imparted to the standard byvertically-rising foreign substances contacting with a substantiallyvertically positioned scraper-plate.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

l. A disk-scraper comprising a scraperplate, a rotatably-mounted sleevecarrying the same, a movably-mounted support supporting the sleeve, andmeans extending through said sleeve for limiting the same in itsmovement.

2. In a disk-scraper, the combination with a standard, of a sleevesurrounding the same and formed with a slot, retaining means engagingsaid Standard and extending through said slot, and ascraper-platecarried by said sleeve, substantially as described.

3. In a disk-scraper, the combination with a standard, a sleevesurrounding a portion 0i' said standard and formed with slots in itswalls, a pin extending through said standard and through said slot, anda scraper-plate carried by said sleeve, substantially as described.

4. In a disk-scraper, the combination with a suitable support, of aplatecarried thereby, a sleeve projecting laterally from said plate, astandard surrounding said sleeve, cushioning means carried by said plateengaging said standard, and a scraper-plate carried by the standard,substantially as described.

5. In a disk-scraper, the combination with a support, of a plate carriedthereby, a pivotally-mounted standard, a bar extending transverselythrough said standard, a bolt carried by said bar, an eye on said plateslidably surrounding said bolt, a spring interposed between said eye andbar, and scraping means carried by said standard, substantially asdescribed.

In testimony whereof I hereunto aiiix my signature in presence of twowitnesses.

WILLIAM FETZER.

Witnesses:

A. C. FREEZE, C. R. KENT.

